diff --git a/Battery-Possibilities.md b/Battery-Possibilities.md
index 27790d8..e7427ad 100644
--- a/Battery-Possibilities.md
+++ b/Battery-Possibilities.md
@@ -1,16 +1,26 @@
-Solar Powering:
-
 24/7 Battery:
 Deep sleep and every mikroAmpere counts.
 https://randomnerdtutorials.com/esp8266-deep-sleep-with-arduino-ide/#:~:text=To%20put%20the%20ESP8266%20in%20deep%20sleep%2C%20you%20use%20ESP,connect%20RST%20to%20GPIO%2016.
 
 "To put the ESP8266 in deep sleep mode, use **ESP.deepSleep(uS)** and pass as argument sleep time in microseconds. GPIO 16 must be connected to reset (RST) pin so the ESP8266 is able to wake up."
 
-
-Omit a charging circuit or replaceable batteries (rechargeable)
-
-LiFePo4 Battery (max < 3,6 Volt and 3.3 Volt recommended)
-
 trigBoard has an extremely low power consuption.
 
-If we use normal AA or AAA BAtteries we may need a regulator to lessen the voltage.
\ No newline at end of file
+If we use normal AA or AAA BAtteries we may need a regulator to lessen the voltage.
+
+Battery Possibilities:
+1. 3.7V Li-ion or LiPo Battery
+    **Capacity:** 2000mAh or higher.
+   ** Voltage:** 3.7V nominal (4.2V when fully charged).
+   ** Connection:** Use a boost converter to step up the voltage to 5V if connecting to the 5V pin, or directly connect to the Vin pin if the boost converter
+    outputs a higher voltage(e.g.,7-12V)
+    
+2. 7.4V LiPo Battery
+   ** Capacity:** 2000mAh or higher.
+   ** Voltage:** 7.4V nominal (8.4V when fully charged).
+**    Connection**: Directly connect to the Vin pin.
+    
+3. 18650 Li-ion Cells
+	**Configuration:** Use two 18650 cells in series to get 7.4V nominal.
+	**Capacity:** Each cell typically has a capacity of 2500mAh or higher.
+	**Connection:** Directly connect to the Vin pin.
\ No newline at end of file